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Table 7: Fault indicator on the sender
PWR-LED
ERR-LED
Possible cause
Rectification
o
o
No supply voltage or supply voltage
is too low or internal fault
Check the voltage supply,
.
Switch the voltage supply off and
then on again.
If the fault persists, replace the
sender,
.
o
Ö
Red
The voltage was too high when oper‐
ating the sender.
Check the voltage supply,
.
Replace the sender,
O
Yellow
Ö
Red
Fault in the supply voltage
Check the voltage supply and the
power supply unit,
Switch the voltage supply off and
then on again.
If the fault persists, replace the
defective components,
Ö
Yellow
Ö
Red
The sender identified an internal
fault.
Switch the voltage supply off and
then on again.
If the fault persists, replace the
sender,
.
o
LED off.
Ö
LED flashes.
O
LED illuminates.
Receiver
Position of LEDs:
see "Receiver indicators", page 13
Table 8: Fault indicator on the receiver
OSSD LED ERR-LED
Alignment quality LEDs
Possible cause
Rectification
1
2
3
4
O
Red
Ö
Red
Ö
Blue
o
o
o
An internal fault has
occurred.
Switch the voltage sup‐
ply off and then on
again. If the fault per‐
sists, replace the
receiver,
O
Red
Ö
Red
o
Ö
Blue
o
o
Fault in the supply volt‐
age
Check the voltage sup‐
ply and the power sup‐
ply unit,
.
Switch the voltage sup‐
ply off and then on
again.
If the fault persists,
replace the defective
components,
"Ordering information",
page 54
TROUBLESHOOTING
10
8021554/14Q7/2020-04-27 | SICK
O P E R A T I N G I N S T R U C T I O N S | deTem2 Core IP69K
47
Subject to change without notice